Mega Tester LCR-T4 Ukrainian firmware ver1.15UA RLC, ESR-meter, diode, transistor tester

Hot characteristic:

A mega tester was designed on the basis of the ATmega328 microcontroller, the COG12864 LCD display, a key button, a block, a quartz resonator and other additional components, to ensure the correct operation of the robot. I will add some special features: automatic switching on and easy calibration process.

Change of parameters:

For the help of the LCR-T4 mega tester, you can find out the parameters of such components: capacitor, resistor, conductor elements (transistor, diode) and inductance coil.

Vimiruvach can designate the following parameters of electronic components:
element opir
inductance
capacitor capacity
Type and characteristics of the transistor /diode
Transmission coefficient of the base of a bipolar transistor
Bipolar transistor voltage
FET gate capacitance
Field-effect transistor voltage
Voltage drop on diodes
Parasitic capacitance of the diode

In order to change the parameter of the component, it is necessary to turn on the power socket at the same time as the "Krona" battery. Let's then clean up the fixation from the block, pulling the important uphill, and place the necessary element in the block. If necessary, close the latch, pulling the valve down, and briefly press the control button. Let's use the mega tester LCR-T4 to automatically determine the characteristics of the element, which is installed into the bar.

Catch your respect, when the capacitor capacity is reduced, it is necessary to discharge it!

Calibration:

Calibration of the tester is guilty of being carried out periodically as for any other vimiruvalnyh devices. In order to calibrate the switch, prepare two high-capacity capacitors (polypropylene, metal-filled ...) with a capacity of over 100nF and 4-30nF, as well as a jumper for switching three contacts in the test panel. Next, you need to install a jumper in contacts 1, 2, 3 and press the control button. When switched on, the screen will display "Self-test mode?". Press the button again to confirm. The calibration will be revealed. Dock the message "Isolation!" and remove the jumper. Self-calibration will continue until the capacitor symbol appears and the rating must be inserted. As a rule, during the first calibration, it is necessary to insert a capacitor on the back with a capacity of over 100 nanofarads, and then 4-30 nanofarads, and with advance only 4-30 nF.

Completion of the calibration is accompanied by the revision of the software version and the "Test completed" notification. External calibration can be repeated by going to the menu and selecting the "Self test mode" item.

Technical characteristics I will add:

microcontroller ATmega328
Life pressure, V 9
Support range 0.1 Ohm ... 50 MOhm
Range of variable inductance
0.01 mH ... 20 H
Range of variable capacity 25 pF ... 100000 uF
Working strum, mA 25
Module dimensions, mm 72 x 59.